From: Johan Hovold <johan@kernel.org>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: "Johan Hovold" <johan@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
DTML <devicetree@vger.kernel.org>,
linux-omap <linux-omap@vger.kernel.org>,
"Jonathan Cameron" <jic23@kernel.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Tony Lindgren" <tony@atomide.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Russell King" <linux@armlinux.org.uk>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"Thierry Reding" <treding@nvidia.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Kevin Hilman" <khilman@baylibre.com>,
"Benoît Cousson" <bcousson@baylibre.com>,
kernel@pyra-handheld.com,
"Andreas Kemnade" <andreas@kemnade.info>,
"Discussions about the Letux Kernel"
<letux-kernel@openphoenux.org>,
"Andreas Färber" <afaerber@suse.de>
Subject: Re: [PATCH v5 3/5] misc serdev: Add w2sg0004 (gps receiver) power control driver
Date: Mon, 19 Mar 2018 15:05:55 +0100 [thread overview]
Message-ID: <20180319140555.GN18359@localhost> (raw)
In-Reply-To: <461DBB7C-5FF7-4723-9518-C9A5E7E5610D@goldelico.com>
On Wed, Mar 07, 2018 at 04:53:12PM +0100, H. Nikolaus Schaller wrote:
> If I look for example at the camera module drivers provided by
> drivers/media/i2c, most of them could be easily power-controlled from
> user-space by i2c-tools and 1-2 gpios through /sys/class/gpio and
> a big set of scripts.
>
> Still they have a place in the kernel and cameras are powered on
> if the device is opened and powered down if it is closed.
>
> So I am still trying to understand the rationale and logic (if one exists)
> behind having them in kernel but rejecting our driver which does the
> same for a different class of devices.
For media we have a framework in place; for gps we do not (yet).
Johan
WARNING: multiple messages have this Message-ID (diff)
From: johan@kernel.org (Johan Hovold)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 3/5] misc serdev: Add w2sg0004 (gps receiver) power control driver
Date: Mon, 19 Mar 2018 15:05:55 +0100 [thread overview]
Message-ID: <20180319140555.GN18359@localhost> (raw)
In-Reply-To: <461DBB7C-5FF7-4723-9518-C9A5E7E5610D@goldelico.com>
On Wed, Mar 07, 2018 at 04:53:12PM +0100, H. Nikolaus Schaller wrote:
> If I look for example at the camera module drivers provided by
> drivers/media/i2c, most of them could be easily power-controlled from
> user-space by i2c-tools and 1-2 gpios through /sys/class/gpio and
> a big set of scripts.
>
> Still they have a place in the kernel and cameras are powered on
> if the device is opened and powered down if it is closed.
>
> So I am still trying to understand the rationale and logic (if one exists)
> behind having them in kernel but rejecting our driver which does the
> same for a different class of devices.
For media we have a framework in place; for gps we do not (yet).
Johan
WARNING: multiple messages have this Message-ID (diff)
From: Johan Hovold <johan@kernel.org>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: "Johan Hovold" <johan@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
DTML <devicetree@vger.kernel.org>,
linux-omap <linux-omap@vger.kernel.org>,
"Jonathan Cameron" <jic23@kernel.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Tony Lindgren" <tony@atomide.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Russell King" <linux@armlinux.org.uk>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"Thierry Reding" <treding@nvidia.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Kevin Hilman" <khilman@baylibre.com>,
"Benoît Cousson" <bcousson@baylibre.com>,
kernel@pyra-handheld.com,
"Andreas Kemnade" <andreas@kemnade.info>,
"Discussions about the Letux Kernel"
<letux-kernel@openphoenux.org>,
"Andreas Färber" <afaerber@suse.de>,
"Linux ARM" <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v5 3/5] misc serdev: Add w2sg0004 (gps receiver) power control driver
Date: Mon, 19 Mar 2018 15:05:55 +0100 [thread overview]
Message-ID: <20180319140555.GN18359@localhost> (raw)
In-Reply-To: <461DBB7C-5FF7-4723-9518-C9A5E7E5610D@goldelico.com>
On Wed, Mar 07, 2018 at 04:53:12PM +0100, H. Nikolaus Schaller wrote:
> If I look for example at the camera module drivers provided by
> drivers/media/i2c, most of them could be easily power-controlled from
> user-space by i2c-tools and 1-2 gpios through /sys/class/gpio and
> a big set of scripts.
>
> Still they have a place in the kernel and cameras are powered on
> if the device is opened and powered down if it is closed.
>
> So I am still trying to understand the rationale and logic (if one exists)
> behind having them in kernel but rejecting our driver which does the
> same for a different class of devices.
For media we have a framework in place; for gps we do not (yet).
Johan
next prev parent reply other threads:[~2018-03-19 14:05 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 7:49 [PATCH v5 0/5] misc serdev: new serdev based driver for Wi2Wi w2sg00x4 GPS module H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
2017-12-01 7:49 ` [PATCH v5 1/5] dt-bindings: define vendor prefix for Wi2Wi, Inc H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
2017-12-01 14:44 ` Andreas Färber
2017-12-01 14:44 ` Andreas Färber
2017-12-01 7:49 ` [PATCH v5 2/5] dt-bindings: gps: add w2sg00x4 bindings documentation (GPS module with UART)) H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
2017-12-01 7:49 ` [PATCH v5 4/5] DTS: gta04: add uart2 child node for w2sg00x4 H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
[not found] ` <1b1c7a8319eaf61a46eebd7a366ea745b7a54634.1512114577.git.hns-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2017-12-21 14:53 ` Tony Lindgren
2017-12-21 14:53 ` Tony Lindgren
2017-12-21 14:53 ` Tony Lindgren
[not found] ` <cover.1512114576.git.hns-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2017-12-01 7:49 ` [PATCH v5 3/5] misc serdev: Add w2sg0004 (gps receiver) power control driver H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
[not found] ` <5494ad34b39a6c62601e3747440268dfb3be7d5a.1512114576.git.hns-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2017-12-22 12:44 ` Johan Hovold
2017-12-22 12:44 ` Johan Hovold
2017-12-22 12:44 ` Johan Hovold
2017-12-22 14:40 ` H. Nikolaus Schaller
2017-12-22 14:40 ` H. Nikolaus Schaller
2017-12-22 14:40 ` H. Nikolaus Schaller
2018-01-09 11:55 ` [Letux-kernel] " H. Nikolaus Schaller
2018-01-09 11:55 ` H. Nikolaus Schaller
2018-01-09 11:55 ` H. Nikolaus Schaller
[not found] ` <90F9A8E4-035A-4A9E-8AAB-757491D63E69-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2018-01-12 15:39 ` Johan Hovold
2018-01-12 15:39 ` Johan Hovold
2018-01-12 15:39 ` Johan Hovold
2018-01-12 17:59 ` H. Nikolaus Schaller
2018-01-12 17:59 ` H. Nikolaus Schaller
2018-01-12 17:59 ` H. Nikolaus Schaller
2018-01-18 6:13 ` Johan Hovold
2018-01-18 6:13 ` Johan Hovold
2018-01-18 6:13 ` Johan Hovold
2018-01-18 13:43 ` H. Nikolaus Schaller
2018-01-18 13:43 ` H. Nikolaus Schaller
2018-01-18 13:43 ` H. Nikolaus Schaller
2018-03-07 15:53 ` H. Nikolaus Schaller
2018-03-07 15:53 ` H. Nikolaus Schaller
2018-03-07 15:53 ` H. Nikolaus Schaller
2018-03-19 14:05 ` Johan Hovold [this message]
2018-03-19 14:05 ` Johan Hovold
2018-03-19 14:05 ` Johan Hovold
2018-02-12 15:26 ` [Letux-kernel] " Pavel Machek
2018-02-12 15:26 ` Pavel Machek
2018-02-12 15:26 ` Pavel Machek
2018-02-27 7:04 ` Johan Hovold
2018-02-27 7:04 ` Johan Hovold
2018-02-27 7:04 ` Johan Hovold
2018-02-27 7:32 ` H. Nikolaus Schaller
2018-02-27 7:32 ` H. Nikolaus Schaller
2018-02-27 7:32 ` H. Nikolaus Schaller
2018-03-19 13:54 ` Johan Hovold
2018-03-19 13:54 ` Johan Hovold
2018-03-19 13:54 ` Johan Hovold
2018-03-20 14:49 ` H. Nikolaus Schaller
2018-03-20 14:49 ` H. Nikolaus Schaller
2018-03-20 14:49 ` H. Nikolaus Schaller
2018-03-26 13:59 ` Pavel Machek
2018-03-26 13:59 ` Pavel Machek
2018-02-27 18:38 ` Pavel Machek
2018-02-27 18:38 ` Pavel Machek
2018-02-27 18:38 ` Pavel Machek
2018-02-12 15:25 ` Pavel Machek
2018-02-12 15:25 ` Pavel Machek
2018-01-09 17:43 ` Andreas Kemnade
2018-01-09 17:43 ` Andreas Kemnade
2018-01-09 17:43 ` Andreas Kemnade
2018-01-12 14:46 ` Johan Hovold
2018-01-12 14:46 ` Johan Hovold
2018-01-12 18:40 ` Andreas Kemnade
2018-01-12 18:40 ` Andreas Kemnade
2018-01-12 18:40 ` Andreas Kemnade
[not found] ` <20180112194022.7da1e726-cLv4Z9ELZ06ZuzBka8ofvg@public.gmane.org>
2018-01-18 6:47 ` Johan Hovold
2018-01-18 6:47 ` Johan Hovold
2018-01-18 6:47 ` Johan Hovold
2018-03-08 6:16 ` Andreas Kemnade
2018-03-08 6:16 ` Andreas Kemnade
2018-03-19 14:02 ` Johan Hovold
2018-03-19 14:02 ` Johan Hovold
2017-12-01 7:49 ` [PATCH v5 5/5] misc serdev: w2sg0004: add debugging code and Kconfig H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
2017-12-01 7:49 ` H. Nikolaus Schaller
[not found] ` <5816bfb9e7cab68591c133e20696d6188ebe70de.1512114577.git.hns-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2017-12-22 12:51 ` Johan Hovold
2017-12-22 12:51 ` Johan Hovold
2017-12-22 12:51 ` Johan Hovold
2017-12-22 14:41 ` H. Nikolaus Schaller
2017-12-22 14:41 ` H. Nikolaus Schaller
[not found] ` <A2720858-5172-4627-8133-C677E4B4DC72-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2017-12-22 14:58 ` Greg Kroah-Hartman
2017-12-22 14:58 ` Greg Kroah-Hartman
2017-12-22 14:58 ` Greg Kroah-Hartman
2017-12-18 8:52 ` [PATCH v5 0/5] misc serdev: new serdev based driver for Wi2Wi w2sg00x4 GPS module H. Nikolaus Schaller
2017-12-18 8:52 ` H. Nikolaus Schaller
2017-12-18 8:52 ` H. Nikolaus Schaller
2017-12-18 14:48 ` Greg Kroah-Hartman
2017-12-18 14:48 ` Greg Kroah-Hartman
[not found] ` <20171218144816.GA31130-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2017-12-18 14:52 ` H. Nikolaus Schaller
2017-12-18 14:52 ` H. Nikolaus Schaller
2017-12-18 14:52 ` H. Nikolaus Schaller
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